baber/WOPTO huggingface dataset:
Patent GB-925076-A (GB)
Title: Improvements in or relating to dolly-actuated, snap-action electric switches
Inventor: BEER DONALD COURTNEY
IPC: H01H23/16
Filed: 1958-07-08
Abstract: 925,076. Snap-action switches. OTEHALL Ltd. Oct. 2, 1959 [July 8, 1958], No. 21857/58. Class 38 (5). The moving contact carrier 12 is centrally pivoted at 11 and is caused to move with a snap into and of engagement with fixed contacts 2, 3 by a spring plunger 18 which acts on a slide 25 bearing at its ends on the carrier 12, so that the carrier cannot remain in a neutral " open " position in any position of the dolly 16. The latter is mounted by bearing surfaces 20, 21 in the casing 1, which surfaces seal the casing against the entry of dust and moisture. If the contacts weld, the plunger " bottoms " in the dolly and forces them apart positively. The carrier may support a bridging contact at each end or may include a number of mutually insulated strips co-operating with separate fixed contacts.
Patent GB-639420-A (GB)
Title: Liquid level gauge
IPC: F16N19/00
Filed: 1947-08-08
Abstract: 639,420. Liquid level gauge. AUTO RESEARCH CORPORATION. Aug. 8, 1947, No. 21869. Convention date, July 16, 1940. [Class 123(i)] A pre-assembled unitary oil window assemblage comprises a mounting ring 50 having an internal flange near its forward portion, a window 51 against the flange, a gasket 52 against the rear of the window and a perforated backing plate 53 against the gasket, the rear edge 66 of the mounting ring 50 being turned over the backing plate in a manner compressing the assembled parts together. The assembly is then screwed or press fitted in an oil tight manner in the wall 54 of an oil reservoir. Alternatively the backing plate may be integral with the mounting ring. An additional gasket 75 may be included between the mounting ring and the reservoir or between the window 51 and the forward flange of the mounting ring. The Specification as open to inspection under Sect. 91 comprises also the insertion in a recess in a reservoir wall of a gasket, a window and finally an outer pressure applying ring, a perforated backing plate being integral with, or press fitted into, the reservoir wall. This subject-matter does not appear in the Specification as accepted.
Patent GB-773021-A (GB)
Title: Improvements in or relating to nuclear reactor elements
IPC: G21C3/20
Filed: 1955-07-29
Abstract: An alloy comprising 44.5 per cent lead and 55.5 per cent bismuth by weight is used as an intermediate material between a fissile material for a nuclear reactor and its sheath.  The alloy has good heat transmitting properties and melts at 125 DEG C.
Patent GB-246062-A (GB)
Title: Improvement in motion picture camera
IPC: G03B1/42
Filed: 1924-08-11
Abstract: 246,062. Howell, A. S. Aug. 11, 1924. Kinematograph apparatus.-In cameras wherein the film extends from the ends of the gate in front of and rearwardly between two constantfeed sprockets, the rear part of the gate is mounted on a carrier which is movably supported on the frame of the camera. Figs. 2 and 3 show respectively a side elevation and horizontal section of a camera constructed as described in Specification 242,697, the gate being shown open in Fig. 2 and closed in Fig. 3. The rear part 78 of the gate is mounted on a member 136 forming the front end of a bar 131 capable of forward and rearward movement on the plate 13 of a removable frame within the camera. The part 78 has its ends doubled back to embrace the member 136 and is spaced from it by a coiled spring 139. The bar 131 is carried by studs 132 extending through holes in it and having heads engaging horizontal slots 134 in the plate 13. The bar has flat horizontal surfaces formed with channels 149 aligned with the picture portion of the film and is retained in closed position by a lug 141 on a removable side cover. The film extends from the ends of the gate in loops passing in front of sprockets 32 and between them and the bar 131 to spools 18. Members 142 mounted on pivots 143 carry guide portions 144 which retain the film on the sprockets 32 when the gate is closed, the members being pro. vided with arms 145 having cam portions 146 engaged by a roller 147 and pins 148 so as to cause the portions 144 to move to and from the sprockets with movement of the bar 131. The sprockets 32 are arranged to stop, when the mechanism is at rest, with the teeth in the position shown in Fig. 2, so that the film may be inserted edgewise when threading.
Patent GB-960670-A (GB)
Title: Process for the regeneration of nickel aluminium oxide catalysts
Inventor: BLUME HERMANN
IPC: B01J23/94
Filed: 1962-06-07
Abstract: Spent Ni or Al2O3-type catalysts, which have as contaminants inter alia SO411 and Fe+++, are regenerated by dissolving the catalyst in HNO3 and adding to the solution sufficient of a barium compound to cause precipitation of SO411, the Fe+++ being precipitated by making the solution alkaline and thus permitting their removal as Fe(OH)3. SO411 and Fe+++ may be precipitated by addition of BaCO3 or Ba(OH)2 and Na2CO3.  Specifications 478,386, 478,887, and 536,193 and U.S.A. Specifications 2,473,880, 2,671,763, and 2,697,078 are referred to.
Patent GB-420499-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H05B41/232
Filed: 1934-07-30
Abstract: 420,499. Discharge apparatus. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Assignees of Patent-Treuhand-Ges. f³r Elektrische Gl³hlampen ; 11, Ehrenbergstrasse, Berlin) July 30, 1934, No. 22194. Convention date, Sept. 7, 1933. Drawings to Specification. [Class 39 (i)] A device having a discharge in a tubular envelope which does not fill the whole crosssection of the envelope, such as a high-pressure discharge device, and operated in a position inclined to the vertical has one or more coils in series with the device so arranged that the magnetic field of the coils tends to deflect the discharge in a direction opposed to that in which the convection currents tend to deflect it. The coils are preferably iron-cored chokes and may entirely replace the normal ballast impedance. In one form, four chokes are arranged in series with each other and with the tube and are mounted at equal intervals above the tube, which is horizontal. In a modification, the chokes are below the tube and are wound in the opposite direction. The tube may be a lamp with a metal vapour filling and self-heating thermionic electrodes. A ballast impedance, if used, is mounted remote from the tube.
Patent GB-445169-A (GB)
Title: Improvements in and apparatus for moulding hollow bodies of glass
IPC: C03B19/04
Filed: 1935-08-06
Abstract: 445,169. Glass manufacture. NEUE GLASINDUSTRIE-GES., Weisswasser, Ober- Lausitz, Germany. Aug. 6, 1935, No. 22194. Convention date, Aug. 6, 1934. [Class 56] A process for moulding hollow glass articles, particularly those of large diameter and having thick walls, consists in pouring molten glass into a mould and in moving the mould and the supply of glass relatively to one another so that the article is built up of layers of glass applied continuously one to another. The glass may be flowed from a spout f into a mould a which is rotated by any suitable means. Alternatively, the mould may be stationary and the spout may be moved to distribute the glass in the mould cavity e. Tubular bodies formed in this way may be hardened, and they may be cut up to form channels or piping. In the Specification as open to inspection under Sect. 91 it is stated that the layers of glass may be applied to one another in the mould in a radial direction with the aid of centrifugal force. This subject-matter does not appear in the Specification as accepted.
Patent GB-592701-A (GB)
Title: Improvements in and relating to attachments for tapping holes, screwing up studs andlike operations
IPC: B23Q11/04
Filed: 1946-06-26
Abstract: 592,701. Tapping; inserting studs. DODD, J. Aug. 29, 1945, Nos. 22222 and 27698. [Class 83 (iii)] In a machine attachment for tapping holes or screwing up studs &c. and embodying a slipping clutch, the members of the clutch are held in engagement by a cushion of rubber or like resilient material which is deformed to regulate the pressure between the clutch members. The driving element 7 of the clutch is axially slidable in a housing 2 and on the driving spindle 5, the rubber &c. cushion being packed between the back of the clutch member and the end of the housing, such cushion being cylindrical in form or, as shown, in the form of a series of rings 9. The driven clutch member 11 is rotatably mounted and secured against relative axial movement in a flanged screwed sleeve 13 engaging the housing 2. Adjustment of the sleeve varies the compression of the rings 9 and therefore the pressure between the clutch teeth 8. Similar cushioning means 28 is provided between the end of a centring stud 30 and a counterbore in the extension 12 of the driven clutch member to prevent damage to screw-threads on the withdrawal of a tap. The housing 2 may be calibrated to indicate the pressure on the clutch teeth. Sockets.-Tke tool adaptor 18 is keyed to the holder 22 and is secured by rotating an outer sleeve 23 to wedge steel balls against the adaptor.
Patent GB-1396815-A (GB)
Title: Process for removing sulphur dioxide from exhaust gases
IPC: C01F11/46
Filed: 1973-05-09
Abstract: 1396815 Sulphur dioxide from gases; calcium sulphate NIPPON KOKAN KK 9 May 1973 22223/73 Heading C1A SO 2  is removed from a combustion exhaust gas stream and CaSO 4 .2H 2 O is formed by: (a) scrubbing the gas stream with a first circulating aq. soln. of NH 4 SO 3 , (NH 4 ) 2 HSO 3  and at a pH of 5À8-6À5, (b) scrubbing an NH 3  gas stream with a second circulating aq. soln. of the said ammonium salts at a pH of 6À3-7À0, (c) maintaining the pH of each scrubbing soln. in the said ranges by continuously cycling part of each of the solns. into the other soln. thereby forming a third circulating soln., (d) withdrawing part of the third circulating soln. and adding, at a temp. of 90-100‹ C., atmospheric pressure and a pH of 11-12 and in the presence of CaSO 4 .2H 2 O seed crystals 100-250 Á long and 30-60 Á wide, Ca(OH) 2  to precipitate CaSO 3  and CaSO 4 , and evolve NH 3  gas, (e) recycling the NH 3  gas to the scrubbing step (b), (f) blowing air into the slurry of CaSO 3 , adjusted to a pH of 4 by the addition of dil. H 2 SO 4 , to oxidize the CaSO 3  into CaSO 4 .2H 2 O which accrete on the CaSO 4  seeds therein, (g) filtering the slurry to obtain CaSO 4 .2H 2 O and a mother liquor, (h) neutralizing the mother liquor with NH 4 OH and then, (i) recycling the mother liquor into the third circulating soln. The CaSO 4 .2H 2 O crystals produced may have a length of 150-300 Á and a width of 40-80 Á. After neutralization of the mother liquor with NH 4 OH, e.g. to a pH of 7-8, part of the third circulating soln. containing the said ammonium salts may be added thereto to precipitate any Ca, Fe and Al ions which may be present and then the clarified mother liquor recycled to the third circulating soln. and part used to wash the CaSO 4 .2H 2 O crystals.
Patent GB-838811-A (GB)
Title: Improved transparent glass elements
IPC: C03C3/12
Filed: 1956-07-18
Abstract: 838,811. Glass composition. MINNESOTA MINING & MANUFACTURING CO. Julv 18, 1956 [July 18, 1955], No. 22239/56. Class 56. Glasses, for elements not more than 0À08 inch thick, with high resistance to acids and refractive indices of at least 2À2, particularly for beads, fibres and flakes, comprise in percentages by weight (preferred ranges in brackets, giving glasses with refractive indices of at least 2À4) : Bi 2 O 3  70- 99 (70- 95) TiOz 0- 30 ( 5- 25) Bi 2 O 3  + TiO 2  80-100 (90-100) ZnO 0-15 (0-10) Alkaline earth oxides 0- 20 ( 0- 10) Strong glassformers 0- 10 ( 0- 5) (Selected from B 2 O 3  SiO 2 , P 2 O 5  and GeO 2 ) Specification 598,330 is referred to.
Patent GB-713830-A (GB)
Title: Improvements in or relating to driving belts
IPC: F16G1/00
Filed: 1952-09-04
Abstract: 713,830. Driving belts. SIEGLING, E. Sept. 4, 1952, No. 22266/52. Class 80 (1) A driving belt comprises two or more tension layers b, d of plastic material such as polyamide separated by and adhered to a layer c of a maternal having a relatively large coefficient of expansion and good flexibility such as leather, textile material or asbestos. The plastic layers may be formed of strips welded together and a further layer a of the material c may be provided on the inside of the belt for engaging the pulley surface. The layers are adhered together by softening the surface of the plastic with formic acid to allow penetration into the fibres of the separating layer.
Patent GB-149626-A (GB)
Title: Improvements in or relating to planes and like hand tools
IPC: B23D49/11
Filed: 1920-07-26
Abstract: 149,626. Rousseau, F. July 25. 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Saws.-For cutting rabbets along the edges of wooden boards, &c. two separate saws are employed which are fitted with guides to engage the edge of the board to regulate the distance of the cuts from the edges of the wood, and means for regulating the depth of the cut are also employed. As shown in Fig. 2 in section, a saw blade d is fixed in a sliding carrier g which can be adjusted relatively to the body b of the saw by means of two bolts f which are fixed in position by collars and grooves and are screw-threaded for a part of their length, and are fitted with locking- nuts f<1>. The distance of the cut from the edge of the wood is determined bv the distance of the saw d from a guide c which is made to engage the edge of the work, and the depth is adjustable by means of bolts e and wing-nuts e' which permit the saw to be clamped in the desired vertical position. A second saw similar to that shown is used for sawing the other side of the rabbet, but in this saw the guide c is adjustable in position to determine the distance of the cut from the edge of the wood, and the depth of the cut is determined by an adjustable plunger arranged between the saw and the guide. The rabbet may be cnmpieted by a succession of saw-cuts which are close together and thus saw out a number of thin pieces of wood of a width equal to the distance of the first cut from the edge of the wood.
Patent GB-301344-A (GB)
Title: A composition material
IPC: C04B28/14
Filed: 1927-08-24
Abstract: 301,344. Marks, E. C. R., (Insulex Corporation). Aug. 24, 1927. Porous compositions.-A porous composition is made by forming bubbles in a fluid mixture of water, calcined calcium sulphate, and a small quantity of a substance such as soap, saponin &c. adapted to assist in the formation and distribution of the bubbles. The bubbles are preferably formed by carbon dioxide generated in the mass by the action of water on substances such as aluminium sulphate and calcium carbonate. The composition may also contain hydrophobic colloidal substances such as talc, silica, lampblack or gum arabic adapted to strengthen the bubble walls. An example of a dry mixture adapted to be gauged with water to produce a porous composition comprises 2 lb. of calcined gypsum, 3 oz. of aluminium sulphate, 1¢ oz. of calcium carbonate, 60 grams of soap and 120 grams of talc. Specification 301,359 is referred to.
Patent GB-752751-A (GB)
Title: Method of producing selenium rectifier plates
IPC: H01L21/108
Filed: 1954-07-30
Abstract: A method of producing selenium rectifier plates comprises applying powdered amorphous selenium on a metallic base electrode and then hot-pressing a porous metallic foil counter electrode on the powdered selenium.  If desired, metallic layers may be deposited on the pressed-on foil to obtain a strengthened counter electrode.  The porous metallic foil (i) must have a melting point exceeding 130 DEG C. (ii) may be a metal or an alloy of the metal bismuth, cadmium, tin or lead (iii) can be produced by vaporizing or spraying a metal or alloy on a glass plate and after cooling removing the deposit to form the required foil.  Also the foil on that surface which is to be pressed into the powdered selenium may be coated with insulation, bismuth, thallium or alkaline salts.  A further selenium layer may be applied over the pressed-on foil and this second selenium layer then covered with a base electrode.  In this manner a 3-electrode construction is obtained with the metal foil forming the control electrode.  In a manufacturing example powdered selenium having an admixture of iodine or other halogen or halogen compound is sifted upon a nickel-coated iron base electrode.  Next a thin porous metallic foil consisting of a tin-cadmium alloy having a melting point of 178 DEG C. is placed on the selenium powder and then the entire structure is hot pressed at 130 DEG C.  A few minutes later the rectifier plate is removed from the press and heat-treated at 210 DEG C. and finally electroformed.
Patent GB-184806-A (GB)
Title: Improvements in gangways for airships
IPC: B64B1/40
Filed: 1922-08-17
Abstract: 184,806. Luftschiffbau Zeppelin Ges., and Erhardt, J. Aug. 20, 1921, [Convention date]. Cars and cabins; airships.-A gangway on an airship is formed by pressing inwards the envelopes of two adjacent gas cells by means of a series of tubular hoops rigidly connected to the main framework. Fig. 1 shows the invention applied to the construction of a side gangway giving access from the main longitudinal gangway 1 to a side car 4. Two adjacent gas cells are pressed back to form a passage-way by elliptical tubular hoops 6, flattened at their ends and fixed to a support 2 running at right-angles to the longitudinal girders 3, 9. The hoops 6 are maintained in position by wire stays 7 fixed to the main framework. Cords 10 are arranged over the stays 7 to form a net-work and prevent undue protrusion of the gas envelopes. Access is gained to the car 4 by means of a ladder 5.
Patent GB-265874-A (GB)
Title: An improved fuel economiser for domestic fireplaces
IPC: F24B1/193
Filed: 1926-09-10
Abstract: 265,874. Clewlow, J. Sept. 10, 1926. Addition to 242,129. Fuel economizers; boilers, arrangement of. - A fuel-economizer, of the kind set out in the parent Specification, is formed in three pieces, comprising a back member 7 with a bottom piece 5 and side walls 30 integral with it; a front member 13, the rear face 34 of which is doubly-inclined, as shown, to fit against the correspondingly-formed front edges of the walls 30; and a top member 22 resting on the front and rear members. A vertical flue 10 is formed in the rear wall of the back member, near the bottom of which is an opening 33 controlled by a damper 39, and a recess 4 extends into this flue from the front of the base part 5. The front member is cut away at the bottom so as to straddle the part 5, and is provided with vertical ribs 35 on the rear face, a number of openings 17 leading to the spaces between them, and a cut-away portion 18 forming a further opening. The top member 22 is provided with a flue 26 in alignment with the flue 10 and opening into the chamber 37 formed between the front and rear members together with an inclined flue 28 leading from the front part of the economizer. Water-heating tubes 38 are arranged as shown in the chamber 37. When the device is in use, air passes through the grate, the recess 4, a flue 10 to the flue 26, and the fire gases in part pass through the flue 28 and in part through the openings 17, 18 to the chamber 37, from which they enter the flue 26, partly by way of the flue 10 under control of the damper 39.
Patent GB-1292364-A (GB)
Title: A safety device for fuses for spin-free projectiles
IPC: F42C15/24
Filed: 1970-05-08
Abstract: 1292364 Projectile fuzes JUNGHANS GmbH GEB 8 May 1970 [10 May 1969] 22472/70 Heading F3A A fuze for a non-spin projectile such as a rocket comprises a pivoted primer carrier 13, Fig. 1, held at safe by engagement of a finger 18a of a non-rotatable inertia weight 16 in a groove 13b in the carrier, the inertia weight being supported by fingers 18a and 18b on one end of a sleeve 20 provided with a plurality of longitudinal slots 20a, the sleeve, on acceleration of the projectile, being rotated by an inertia weight 23 so that the fingers 18a and 18b drop into the slots 20a to free the weight 16 and subsequently the carrier for rotation into the armed position. As the weight 16 sets back, owing to the acceleration forces, the finger 18a travels to the bottom of the groove 13b, Fig. 7, whereupon the carrier 13 is rotated by a spring so that the finger 18a is aligned with the other arm of the groove. A spring thenlifts the weight 16 and when the finger 18a is aligned with a lateral portion 13c of the groove the carrier 13 is rotated by a spring to the armed position. Upward and downward movement of the weight 16 is delayed by engagement of a pin 16a, Fig. 2, in a helical groove 24a in a shaft 24. As the weight moves, the shaft is caused to rotate under the delaying action of an escapement mechanism 25-28, Fig. 7. The inertia weight 23 for rotating the sleeve 20 has a conical portion which acts on a lever 21, Fig. 1, the lever is engaged in one of the slots 20a and causes the sleeve to rotate as the weight 23 sets back.
Patent GB-359559-A (GB)
Title: Improvements in the manufacture and production of alkali metal cyanates
IPC: C01C3/14
Filed: 1930-07-25
Abstract: Alkali metal cyanates are obtained by heating alkali metal carbonates with ammonia and carbon dioxide or a compound resulting from the combination of ammonia and carbon dioxide without the splitting off of water, such as ammonium carbamate or carbonate, under conditions in which urea is capable of being formed. Preferably the reaction is carried out under a pressure of at least 50 atmospheres at temperatures up to 400 DEG  C.  The crude or purified cyanate may be heated to temperatures above 400 DEG  C., for example 900 DEG  C., with reducing gases such as hydrogen or may be treated as described in Specification 307,778, [Class 1 (ii), Inorganic compounds, other than &c.], to produce cyanides.  The water set free during the cyanate producing reaction may be removed from the pressure vessel by allowing a part of the vapours to escape during the reaction and replacing them by fresh ammonia and carbon dioxide.  At the end of the reaction water and unconverted ammonium carbonate are removed by heating under normal or reduced pressure.  The ammonia may be introduced in the liquid form.  Examples are given.
Patent GB-182074-A (GB)
Title: Improvements in valve operating mechanism
IPC: F01L1/12
Filed: 1921-08-26
Abstract: 182,074. Williams Motors, Inc., (Assignees of Shaw, L. E.). June 24, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Valve spindles and guides.-To prevent side thrust of a lift-valve spindle 13 upon its guide 14, the valve is opened by a thrust rod which engages at one end a recess 23 in the valve lever 18 and at the other end the bottom of a bore 22 iu the spindle. The valve is closed by a spring engaging a washer 16 locked to the spindle by a divided ring 17.
Patent GB-423344-A (GB)
Title: Tobacco cutting machine
IPC: A24B7/06
Filed: 1934-08-03
Abstract: 423,344. Cutting tobacco. UNIVERSELLE CIGARETTENMASCHINENFABRIK J. C. MULLER & CO., 48, Zwickauerstrasse, Dresden, Germany. Aug. 3, 1934, No. 22664. Convention date, Feb. 2. [Class 5 (i)] A tobacco-cutting machine comprising interengaging sets of rotary cutter discs 3, 4 is provided between the discs with removable oscillating stripper plates 7 which also form a feed channel M and open out below the cutting position. The plates are hooked on their spindles 10, 11, and are pressed upon by springs 18, 19 and oscillated by cams 16, 17.